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Add unit tests for DartPsiImplUtil #191

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Add unit tests for DartPsiImplUtil #191

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31 changes: 31 additions & 0 deletions third_party/src/test/java/com/jetbrains/lang/dart/util/DartPsiImplUtilTest.java
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package com.jetbrains.lang.dart.util;

import com.intellij.openapi.util.Pair;
import com.intellij.openapi.util.TextRange;
import com.jetbrains.lang.dart.DartCodeInsightFixtureTestCase;

public class DartPsiImplUtilTest extends DartCodeInsightFixtureTestCase {

public void testGetUnquotedDartStringAndItsRange() {
doTestUnquote("''", "", 1, 1);
doTestUnquote("'foo'", "foo", 1, 4);
doTestUnquote("\"bar\"", "bar", 1, 4);
doTestUnquote("'''baz'''", "baz", 3, 6);
doTestUnquote("\"\"\"qux\"\"\"", "qux", 3, 6);
doTestUnquote("r'raw'", "raw", 2, 5);
doTestUnquote("r\"raw\"", "raw", 2, 5);
doTestUnquote("r'''raw'''", "raw", 4, 7);
doTestUnquote("r\"\"\"raw\"\"\"", "raw", 4, 7);

// Unclosed strings
doTestUnquote("'open", "open", 1, 5);
doTestUnquote("'''open", "open", 3, 7);
}

private void doTestUnquote(String input, String expectedText, int start, int end) {
Pair<String, TextRange> result = DartPsiImplUtil.getUnquotedDartStringAndItsRange(input);
assertEquals("Text mismatch", expectedText, result.first);
assertEquals("Range start mismatch", start, result.second.getStartOffset());
assertEquals("Range end mismatch", end, result.second.getEndOffset());
}
}
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